Keep Go's build cache between builds (closes #124)

make test and make build in the Dockerfile now share one Go build cache, kept in a BuildKit cache mount with this repository's own id, so they compile only what changed. script/test passes -count=1. Model: opus-5-5
2026-10-06 22:03:25 +00:00
parent ae030d759d
commit 3745227b92
5 changed files with 27 additions and 6 deletions
@@ -6,7 +6,8 @@
 # the lower limit of a plain `docker build .`.
 # A cached build checks nothing: a new CHECK_EPOCH on every run makes the
 # Dockerfile's check steps run again on an unchanged tree, while its base
-# images and module downloads stay cached.
+# images, module downloads and the Go build cache that make test and make
+# build use stay cached.
 set -eu

 ROOT="$(cd "$(dirname "$0")/.." && pwd -P)"